Is the magnessium and potasium level in blood corelated with the level of these minerals in the body? I have found that onlu few % of these minerals are in the blood and rest is in muscles, bones etc.
If I have low magnessium or potassium level in blood, is it the same in rest of body? Or is it possible to have low level in blood and good level in body?
If the level in blood is low, should I just start suplementatnion or check something other too?